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The slant height of a frustum of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm.

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asked Jul 25, 2017 in Mathematics by sforrest072 (157,439 points) ● 63 ● 448 ● 1258

The slant height of a frustum of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.

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answered Jul 25, 2017 by Annu Priya (18,055 points) ● 24 ● 46 ● 95
selected Jul 25, 2017 by sarthaks
 
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Solution: Slant height l = 4 cm, perimeters = 18 cm and 6 cm

Radii can be calculated as follows:

10 surface area volume frustum exercise solution

Curved surface area of frustum

10 surface area volume frustum exercise solution

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